Use the full title "Электронный учебник-справочник Стереометрия 10-11 класс КУДИЦ-ОБРАЗ" to avoid generic geometry results. Kiselev's Geometry / Book II. Stereometry - Amazon.com
3D models of geometric figures that can be rotated to help students visualize spatial relationships.
The search query refers to the published by the Ukrainian publishing house "Kudits-Obraz" (КУДИЦ-ОБРАЗ) . This digital educational resource is part of a series designed for secondary school mathematics. 📘 Overview of the Resource
Many regional educational departments host authorized electronic textbooks for student use.